出版日期：2011-04-01 00:00:00

著者：Yu, Hsuan-Fu; Chen, Li-Hsun

單位：淡江大學化學工程與材料工程學系

出版者：Kidlington: Pergamon

著錄名稱、卷期、頁數：Journal of Physics and Chemistry of Solids 72(4), pp.269-275

摘要：The anatase-TiO2 transparent films, containing 3 mol% of Si and P elements (as dopants), were synthesized using a process combining the sol–gel method and spin-coating technique. Effects of relative ratio of dopants and calcination temperature on phase transformation, grain growth, surface morphology, light transmittance, band-gap energy and photocatalytic activity of the P/Si-TiO2 films were examined and their results were compared with those of the undoped-TiO2 and Si-TiO2 films. The P/Si-TiO2 films calcined at temperature between 600 and 900 °C adhered strongly to the surface of fused-silica substrate and were composed of anatase-TiO2 monophase. The photocatalytic activities of the films were measured and represented using a characteristic time constant (τ) for the methylene blue (MB) photodegradation. The small τ stands for high photocatalytic ability of the film. The P/Si-TiO2 film, containing equalmolar Si and P dopants, calcined at 800 °C gave the best performance in photocatalysis; this film had τ=5.7 h and decomposed about 90 mole% of MB in the water after 12 h of the 365-nm UV light irradiation.

關鍵字：A. Oxides; A. Thin films; B. Sol–gel growth; B. Chemical synthesis; D. Phase transitions

語言：en

ISSN：0022-3697

期刊性質：國外

收錄於：SCI EI

通訊作者：Yu, Hsuan-Fu

國別：GBR

出版型式：紙本